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Methods of treating metastatic breast cancer with 4-iodo-3-nitrobenzamide and irinotecan

a breast cancer and metastatic technology, applied in the field of breast cancer treatment, can solve the problems of refractory to standard treatment, limited treatment with anthracycline, and no accepted standard of care for er negative breast cancer, so as to reduce the size of the breast tumor, reduce the metastasis, and stable disease

Inactive Publication Date: 2013-10-17
BIPAR SCI INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a treatment that can reduce the size of breast tumors, stop the tumors from spreading, and even completely cure them. The treatment can also make other treatments more effective and increase the chances of a complete response.

Problems solved by technology

Treatment with anthracycline is limited by lifetime dosing limits based on cardiotoxicity concerns.
Despite the availability of antimetabolites such as gemcitabine and platinum complex agents such as carboplatin, there is no accepted standard of care for ER negative breast cancer.
In particular, triple negative metastatic breast cancer (i.e., breast cancer that is ER negative, ands / or PR negative, and / or human epidermal growth factor receptor 2 (HER2) negative) is refractory to standard treatments and is entirely refractory to SERM chemotherapy.
It is a serious complication of breast cancer, as metastatic disease in breast cancer is often fatal, with treatments mainly limited to palliation.
Although there are limited therapeutic options for cancer treatment, variants of cancers, including metastatic breast cancer, triple negative breast cancer, are especially difficult because they can be refractory to standard chemotherapeutic or hormonal treatment.

Method used

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  • Methods of treating metastatic breast cancer with 4-iodo-3-nitrobenzamide and irinotecan
  • Methods of treating metastatic breast cancer with 4-iodo-3-nitrobenzamide and irinotecan
  • Methods of treating metastatic breast cancer with 4-iodo-3-nitrobenzamide and irinotecan

Examples

Experimental program
Comparison scheme
Effect test

example 1

A Phase 1 / 1b Dose Escalation Study Evaluating 4-iodo-3-nitrobenzamide (BA) as a Single Agent and in Combination with Irinotecan in Subjects with Advanced Solid Tumors

[0238]This study includes treatment of advanced solid tumors including locally advanced or metastatic breast cancer. The study has two phases: phase 1 and phase 1b.

Objectives

[0239]The primary objectives of phase 1 are to assess the safety, pharmacokinetics and to determine the maximum tolerated dose (MTD) of 4-iodo-3-nitrobenzamide as a single agent in patients with advanced solid tumors that are refractory to standard therapy. The primary objectives of phase 1b are to determine safety and maximum tolerated dose of 4-iodo-3-nitrobenzamide in combination with irinotecan in patients with locally advanced or metastatic breast cancer and to investigate the effect of this maximum tolerated dose of 4-iodo-3-nitrobenzamide in combination with irinotecan in patients with locally advanced or metastatic breast cancer. The seconda...

example 2

Safety Assessment of Administration of 4-iodo-3-nitrobenzamide (BA) at Various Dosages

[0268]24 subjects (advanced solid tumors) were treated with 4-iodo-3-nitrobenzamide monotherapy at doses of 0.5, 1.0, 1.4, 2.8, 4.0, 5.6, and 8.0 mg / kg. Safety data indicated that 4-iodo-3-nitrobenzamide was well tolerated at all dose levels tested to date; no dose limiting toxicities (DLTs) were observed at any dose level. A total of 13 serious adverse events were reported for 5 trial participants. Any serious adverse events (SAEs) reported in the study were deemed not related to study drug by the study investigators. Best response measured to date was stable disease present through at least cycle 2 of the study for six subjects, with 1 subject not having reached end of cycle 2 for a disease assessment to be performed. One subject had completed 9 cycles of treatment with a staging of continued stable disease.

[0269]42 subjects (advanced solid tumors) were treated with 4-iodo-3-nitrobenzamide in com...

example 3

A Phase 1b Study to Assess the Tolerability of the 4-iodo-3-nitrobenzamide (BA) in Combination with Irinotecan for the Treatment of Patients with Metastatic Breast Cancer (MBC)

[0271]This study was conducted to determine the maximum-tolerated dose (MTD) of irinotecan that can be used in combination with fixed dose 4-iodo-3-nitrobenzamide in patients with locally advanced or MBC.

[0272]Patients were treated with a 3+3 study design to determine safety of 4-iodo-3-nitrobenzamide (8 mg / kg IV twice-weekly on Days 1, 4, 8, and 11 every 21 days) in combination with escalating doses of irinotecan (80-125 mg / m2 IV on Days 1 and 8 every 21 days).

[0273]Response rates were measured per modified RECIST criteria. Serial pharmacokinetic (PK) assessments were performed during Cycle 1, and archived paraffin-embedded tumor samples were collected to correlate markers of hypoxia (CAIX) with response.

[0274]The median age of 34 patients who received therapy was 50 years (range, 32-84), and the median numbe...

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Abstract

Provided herein are methods, compositions and kits for the treatment of locally advanced or metastatic breast cancer or breast cancer brain metastases. The method comprises administration of 4-iodo-3-nitrobenzamide, a metabolite or salt thereof in combination with irinotecan. The method of treating locally advanced or metastatic breast cancer comprises at least one 21 day treatment cycle.

Description

RELATED APPLICATIONS[0001]This application claims the priority benefit of U.S. provisional applications U.S. Ser. No. 61 / 365,698, filed Jul. 19, 2010, U.S. Ser. No. 61 / 391,048, filed Oct. 7, 2010, U.S. Ser. No. 61 / 420,745, filed Dec. 7, 2010, U.S. Ser. No. 61 / 481,629, filed May 2, 2011, U.S. Ser. No. 61 / 486,660, filed May 16, 2011, and U.S. Ser. No. 61 / 492,762, filed Jun. 2, 2011, the contents of each of which are incorporated herein by reference in their entirety.TECHNICAL FIELD[0002]The present invention relates to methods and compositions for the treatment of breast cancer comprising the administration of 4-iodo-3-nitrobenzamide or a metabolite thereof or a pharmaceutically acceptable salt thereof in combination with irinotecan.BACKGROUND[0003]Cancer is a group of diseases characterized by aberrant control of cell growth. The annual incidence of cancer is estimated to be in excess of 1.3 million in the United States alone. While surgery, radiation, chemotherapy, and hormones are ...

Claims

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Application Information

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IPC IPC(8): A61K31/4745A61K31/166
CPCA61K31/4745A61K31/166A61K31/7068A61K45/06A61K31/555A61P15/00A61P35/00A61P35/04A61P43/00A61K2300/00
Inventor BRADLEY, CHARLES
Owner BIPAR SCI INC
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